Among his many discoveries, Galileo discovered the first moons ever known to orbit a planet other than Earth, discovering Jupiter’s four largest moons: Io, Europa, Ganymede, and Callisto. Together these moons are now called the Galilean Satellites in his honor.
Born February 15,1564 Died January 8, 1642
He is perhaps most known for his discovery of the four most massive moons of Jupiter
Born in Pisa, Italy